| 摘要 |
PROBLEM TO BE SOLVED: To provide a rational supporting structure for an inverter board. SOLUTION: In this luminaire, a high-frequency oscillating inverter 2 is set on the under surface of a metal body 1, and the under surface of the inverter 2 is covered with a metal reflector 3. Here, a metallic radiating plate 6 mounted with a power semiconductor element 5 is mounted to the substrate 4 of the inverter 2, and the upper end of the radiating plate 6 is mounted to the body 1, then the substrate 4 is fixed to the body 1 by the radiating plate 6. |
